Device powered over coaxial cable via power adapter

Abstract

In one embodiment, a system for powering a device, among other devices, includes a light device, a coaxial cable, and an adapter. The light device includes: a housing; a light sub-assembly situated within the housing, the light sub-assembly including at least one light-emitting diode (LED); a coaxial cable connector mounted to the housing; and a first circuitry disposed within the housing, the first circuitry being capable of receiving DC power from the coaxial cable connector and providing DC power to the light sub-assembly. The coaxial cable is coupled to the coaxial cable connector of the light device at a first end of the coaxial cable. The adapter is coupled to a second end of the coaxial cable opposite the first end. The adapter includes a second circuitry capable of converting AC power received from a power source to DC power output to the coaxial cable to power the light device.

What is claimed is: 
     
       1. A light device comprising:
 a housing; 
 a light sub-assembly situated within the housing, the light sub-assembly comprising at least one light-emitting diode (LED); 
 a coaxial cable connector mounted to the housing and having a first end and a second end, the first end being exterior to the housing and connectable to a coaxial cable, the second end being interior to the housing and opposite to the first end; 
 at least one circuitry sub-assembly mounted within the housing and having circuitry mounted thereon, the circuitry being capable of receiving DC power from the coaxial cable connector and providing DC power to the light sub-assembly; 
 a first connection within the housing and electrically connecting the light sub-assembly to the at least one circuitry sub-assembly; and 
 a second connection within the housing and electrically connecting the coaxial cable connector to the at least one circuitry sub-assembly. 
 
     
     
       2. The light device of  claim 1 , wherein the housing has an overall appearance of being substantially rectangular prism shaped or substantially truncated pyramid shaped. 
     
     
       3. The light device of  claim 1 , wherein the housing has a rear portion having a substantially rectangular prism shape. 
     
     
       4. The light device of  claim 3 , wherein the coaxial cable connector is situated in the rear portion. 
     
     
       5. The light device of  claim 3 , wherein the at least one circuitry sub-assembly is situated in the rear portion. 
     
     
       6. The light device of  claim 3 , wherein the at least one circuitry sub-assembly is mounted to an interior of the rear portion. 
     
     
       7. The light device of  claim 1 , wherein the housing has a front portion having a substantially truncated pyramid shape. 
     
     
       8. The light device of  claim 7 , wherein the light sub-assembly is situated in the front portion. 
     
     
       9. The light device of  claim 1 , wherein a largest dimension of the housing is less than approximately 15 cm. 
     
     
       10. The light device of  claim 1 , wherein the coaxial cable connector is one of an F-type, a BNC type, a TNC type, an N-series type, a UHF type, a SMA type, a QMA type, a FME type, a PAL type, a MC type, a MCX type, a MMCX type, a DIN type, a Mini-DIN type, a TS-9 type, or a NMO type. 
     
     
       11. The light device of  claim 1 , wherein the first end of the coaxial cable connector comprises a female connection portion. 
     
     
       12. The light device of  claim 1 , wherein the light sub-assembly is powered by the DC power received through the coaxial cable connector. 
     
     
       13. The light device of  claim 1 , wherein the light sub-assembly comprises a single LED. 
     
     
       14. The light device of  claim 1 , wherein the light sub-assembly comprises a single LED or a plurality of LEDs arranged in a configuration occupying an area less than or equal to approximately 1 cm 2 . 
     
     
       15. The light device of  claim 1 , wherein there is no transformer present in the housing. 
     
     
       16. The light device of  claim 1 , wherein the circuitry comprises a communication interface capable of receiving communications from a network, wherein the circuitry is capable of controlling an output of DC power to the light sub-assembly based on the communications received via the communication interface. 
     
     
       17. The light device of  claim 16 , wherein the communication interface is configured to operate according to one or more wireless communication protocols selected from the list consisting of: WiFi, Z-wave, Zigbee, Thread, Bluetooth Low Energy (BLE), and Matter. 
     
     
       18. A system comprising:
 a light device comprising:
 a housing; 
 a light sub-assembly situated within the housing, the light sub-assembly comprising at least one light-emitting diode (LED); 
 a coaxial cable connector mounted to the housing; and 
 a first circuitry disposed within the housing, the first circuitry being capable of receiving DC power from the coaxial cable connector and providing DC power to the light sub-assembly; 
 
 a coaxial cable coupled to the coaxial cable connector at a first end of the coaxial cable; and 
 an adapter coupled to a second end of the coaxial cable opposite the first end, wherein the adapter comprises a second circuitry capable of converting AC power received from a power source to DC power that is output to the coaxial cable to power the light device. 
 
     
     
       19. The system of  claim 18 , wherein the second circuitry in the adapter comprises a transformer capable of stepping down voltage of the AC power received from the power source. 
     
     
       20. The system of  claim 18 , wherein the second circuitry of the adapter further comprises a communication interface capable of receiving communications from a network, wherein the second circuitry in the adapter is capable of controlling an output of DC power to the coaxial cable based on the communications received via the communication interface.